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Service Bulletin

File in Section: 06 - Engine

Bulletin No.: 13-06-02-001

Date: March, 2013

TECHNICAL

Subject: Supplemental Repair Required for Drive Motor Battery Coolant Radiator ReplacementDue to Stone/Foreign Material Impact

Models: 2011-2013 Chevrolet Volt

This bulletin replaces PI0727A. Please discard PI0727A.

ConditionSome customers may comment on coolant leaking fromthe front of the vehicle. Further inspection will revealthat the leak is coming from the drive motor batterycoolant radiator.

CauseThis condition may be caused by impact from stones/foreign material.

CorrectionFor Vehicles Built Prior to November 01, 2011

In addition to replacing the radiator, replace the existinggrille screen with a taller screen. Also, add a secondgrille screen to the front of the new radiator followingthe procedure listed below. The installation of theradiator grille screens will greatly reduce the chance forstones/foreign material coming though the front grilleand making contact with the new radiator causingdamage.

For Vehicles Built On or After November 01, 2011

In addition to replacing the radiator and transferring theexisting grille screen, add a second grille screen to thefront of the new radiator following the procedure listedbelow. The installation of the radiator grille screens willgreatly reduce the chance for stones/foreign materialcoming though the front grille and making contact withthe new radiator causing damage.1. Remove the damaged drive motor battery coolant

radiator. Refer to the Drive Motor Battery CoolantRadiator Replacement procedure in SI.

2. Replace or transfer the existing radiator grillescreen to the new radiator.

3. Fabricate two mounting brackets for the additionalscreen using 25 mm (1 in) x 100 mm (4 in)aluminum stock with thickness between 1.59 mm(0.0625 (1/16) in) and 3.18 mm (0.1250 (1/8) in).This material can be obtained locally. A goodsource for this material is Home Depot. The HomeDepot carries Everbilt 1 in. x 36 in. Aluminum FlatBar with 1/8 in. thickness, Model #44690 (HomeDepot Canada carries H. Paulin - Model#142-642).

4. Remove any burrs on the cut surface(s) and roundthe corners using a file.

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5. Using the grille screen mounting tabs as thetemplate, drill holes as shown using a 6.25 mm(0.250 in) drill bit.

6. Mount the brackets to the screen using theretainers.

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7. Place the grille screen with mounting bracketsattached on the new radiator above the existingscreen. Align the screen so that the tubes on theradiator are covered and mark the hole locationsthat will attach to the existing tabs at each end ofthe radiator.

8. Drill the holes as marked using a 6.25 mm(0.250 in) drill bit.

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9. Install the grille screen to the new radiator usingthe retainers.

Bulletin No.: 13-06-02-001 March, 2013 Page 3

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10. Modify the right and left radiator air side baffles byremoving the material as shown.

11. Install the new drive motor battery coolant radiator.Refer to the Drive Motor Battery Coolant RadiatorReplacement procedure in SI.

Parts Information

Part Number Description QtyMaterial

Allowance

22856576 Screen,Radiator Grille

1or 2 -

22765637Radiator, DriveMotor Battery

Coolant1 -

10121502 Retainer 6 -

- AluminumStock -

$1.71 (USD)$2.50 (CND)

Warranty InformationFor vehicles repaired under the 8 year/100,000mile (160,000 km) Chevrolet Volt Battery Components(Code V) warranty, use:

LaborOperation

Description LaborTime

N9700* Replace Drive Motor BatteryCoolant Radiator and AddSecond Grille Screen

4.6 hrs

*This is an unique labor operation for bulletin use only. It willnot be published in the Labor Time Guide.

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform thesetechnicians of conditions that may occur on some vehicles, or to provide information that could assist in the properservice of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do ajob properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that yourvehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from theinformation.

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